In the Solar System the ongoing collisions between asteroids generate a tenuous cloud of dust known as the zodiacal light.

An exceptionally large amount of warm, small, silicate dust particles around the solar-type star BD+20°307 (HIP 8920, SAO 75016) has been reported.

[7] The composition, quantity and temperature of the dust may be explained by recent, frequent or huge collisions between asteroids or other planetesimals whose orbits are being perturbed by a nearby planet.

The Li 6707 Å line though weak is detected only from the primary star, suggesting that it is older than 1 Gyr.

It is hypothesized that, within the past few hundred thousand years and perhaps much more recently, these particles were formed by a collision between two bodies similar to Earth.